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发明名称
Combination lamp guard and clamp for photographic and other purposes
摘要
申请公布号
US2557532(A)
申请公布日期
1951.06.19
申请号
US19470771442
申请日期
1947.08.30
申请人
KENART DEVICES, INC.
发明人
CHAFT MARC
分类号
G03B15/03
主分类号
G03B15/03
代理机构
代理人
主权项
地址
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